SMF - OPO

$492 Find Cheap Flights from Sacramento to Porto

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sacramento to Porto departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to Porto, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$492
Delta
Wed 12/3Sun 12/7
SMF - OPO • 2 stops
Cheapest one-way
Multiple Airlines
Fri 10/31
SMF - OPO • multi-stop
Top airlines
Delta
Cheapest • from $492 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
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+1
Airline reviews
Airline reviews
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Flight Deals

Cheap Flights from Sacramento to Porto (SMF-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sacramento to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sacramento to Porto

Wed, Dec 3 - Sun, Dec 7
Delta Logo
5:25 am - 10:30 amSMF-OPO
21h 05m2 stops
Delta Logo
11:15 am - 11:59 pmOPO-SMF
44h 44m2 stops
$492Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
5:25 am - 10:30 amSMF-OPO
21h 05m2 stops
Delta Logo
11:15 am - 8:42 pmOPO-SMF
41h 27m2 stops
$541Delta
Find Deal
Mon, Feb 16 - Sat, Feb 28
United Airlines Logo
5:00 am - 2:55 pmSMF-OPO
25h 55m2 stops
United Airlines Logo
6:00 am - 10:45 pmOPO-SMF
24h 45m2 stops
$553United Airlines
Find Deal
Thu, Mar 5 - Tue, Mar 31
Lufthansa Logo
10:45 am - 11:40 pmSMF-OPO
28h 55m2 stops
Lufthansa Logo
6:00 am - 6:35 pmOPO-SMF
20h 35m2 stops
$627Lufthansa
Find Deal
Thu, Mar 5 - Tue, Mar 31
Lufthansa Logo
10:45 am - 11:40 pmSMF-OPO
28h 55m2 stops
Lufthansa Logo
6:00 am - 6:35 pmOPO-SMF
20h 35m2 stops
$632Lufthansa
Find Deal
Thu, Mar 5 - Tue, Mar 31
United Airlines Logo
7:10 am - 9:30 amSMF-OPO
18h 20m2 stops
United Airlines Logo
6:00 am - 11:28 pmOPO-SMF
25h 28m2 stops
$637United Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
Delta Logo
6:15 am - 10:30 amSMF-OPO
20h 15m2 stops
Delta Logo
6:00 am - 10:58 pmOPO-SMF
24h 58m2 stops
$647Delta
Find Deal
Wed, Nov 19 - Wed, Nov 26
United Airlines Logo
5:00 am - 9:30 amSMF-OPO
20h 30m2 stops
United Airlines Logo
12:35 pm - 10:04 pmOPO-SMF
17h 29m1 stop
$698United Airlines
Find Deal
Wed, Apr 29 - Wed, May 20
Multiple Airlines Logo
12:30 pm - 11:25 pmSMF-OPO
26h 55m2 stops
Multiple Airlines Logo
6:00 am - 11:48 pmOPO-SMF
25h 48m2 stops
$737Multiple Airlines
Find Deal
Tue, Apr 21 - Wed, May 6
Multiple Airlines Logo
11:00 pm - 9:45 amSMF-OPO
26h 45m1 stop
Multiple Airlines Logo
6:00 am - 11:48 pmOPO-SMF
25h 48m2 stops
$748Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Sacramento to Porto flights

Get data-powered insights and trends into flights from Sacramento to Porto to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Sacramento to Porto?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Sacramento to Porto were found on Delta ($492) and United Airlines ($553).

Which airlines fly non-stop between Sacramento and Porto?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Sacramento to Porto.

There are 3 airlines that fly nonstop from Sacramento to Porto. They are: Air Canada, Delta and United Airlines. The cheapest price of all airlines flying this route was found with Air Canada at $681 for a round-trip flight. On average, the best prices for this route can be found at Delta.

Good to know

Cheapest flight$492
Flight from Sacramento to Porto

When to book flights from Sacramento to Porto

Are your dates flexible? Find out the best times to travel from Sacramento to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sacramento to Porto

  • What is the cheapest flight from Sacramento to Porto?

    In the last 3 days, the lowest price for a flight from Sacramento to Porto was $492 for a round-trip ticket.

  • Do I need a passport to fly between Sacramento and Porto?

    Yes, you’ll need a passport to travel to Porto from Sacramento.

  • Which aircraft models fly most regularly from Sacramento to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sacramento to Porto?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Sacramento and Porto, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Sacramento to Porto, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sacramento to Porto are Delta and United Airlines. With an average price for the route of $776 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,071 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Sacramento to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sacramento to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sacramento to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Sacramento is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sacramento to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Sacramento with another airline. Booking your flights between Sacramento and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sacramento to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Sacramento up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Sacramento to Porto

 
See real verified KAYAK customer reviews for airlines flying from Sacramento to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sacramento to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7998 reviews
8.5Crew
7.9Comfort
7.9Entertainment
7.3Food
8.2Boarding
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

It was a smooth flight both in the sky and landing!

The crew was really nice. The plane seats were kinda small even for a 5’6” / 158 lbs person.

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

Fair. What's the point of partnering with United if we cannot use the lounge. My wife is a frequent flier with United but we were refused access to Air Canada lounge

Real smooth and easy, Real good leg room in coach!

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

They rescheduled me and I had no issues with the new flight

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